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作者	单位
吴冰瑞，王诗音，李天宇，庞玉辉，马指挥，李家创，李娇娇，王黎明，董普辉	（河南科技大学农学院，河南洛阳 471003）

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中文摘要:

为探究小麦T型细胞质雄性不育育性恢复的遗传规律，以恢复系T16-2-1R分别与不育系T9023A和T-Luohan 7A配制杂交组合，并对两个组合的亲本及F₁、F₂代进行育性调查，采用主基因+多基因混合遗传模型进行T型不育系育性恢复的遗传分析。结果表明，T9023A/T16-2-1R和T-Luohan 7A/T16-2-1R组合恢复性遗传均受2对加性-显性-上位性主基因+加性-显性多基因控制，且都存在互作效应。T9023A/T16-2-1R组合的主基因遗传率为98.6405%，多基因遗传率为0.2283%；T-Luohan 7A/T16-2-1R组合的主基因遗传率为98.1538%，多基因遗传率为0.1364%。由此说明T16-2-1R恢复性主基因的遗传率很高，可在早代进行有效选择。

英文摘要:

In order to explore the genetic mechanisms underlying the fertility restoration of T-type cytoplasmic male sterility(CMS) in wheat, the restorer line T16-2-1R was crossed with the sterile lines T9023A and T-Luohan 7A to create hybrid combinations. The parents of the two combinations as well as the F₁ and F₂ generations were investigated for fertility. A mixed genetic model major gene + polygene was employed to analyze the inheritance of fertility restoration in the T-type sterile lines. The results showed that both T9023A/T16-2-1R and T-Luohan 7A/T16-2-1R combinations of restorative inheritance were controlled by two pairs of additive-dominant-superior major genes + additive-dominant polygenes, and both of them had reciprocal effects. The heritability of the major genes in the combination of T9023A/T16-2-1R was 98.6405%, and the heritability of polygenes was 0.2283%; the heritability of the major genes in the combination of T-Luohan 7A/T16-2-1R was 98.1538%, and the heritability of polygenes was 0.1364%. These findings suggest that the heritability of the major genes for fertility restoration in T16-2-1R is very high, enabling effective selection in early generations.

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